Tracey Kelusky was clearly frustrated that his squad -- last season's National Lacrosse League champions -- surrendered several three-goal leads en route to a 19-15 loss to the Arizona Sting last night in the West final at the Saddledome.

"We killed ourselves," said the sullen Roughnecks leader.

"We beat ourselves all game long. There were three times in this game that we had three-goal leads and we pride ourselves on getting to that point.

"But you've got to give that team credit because they wouldn't let us get to that four- or five-goal differential."

As a result, the Arizona Sting advances to its first Champion's Cup final, where it'll face the Toronto Rock at the Air Canada Centre May 14.

Faced with a three-goal deficit late in the fourth quarter, Kelusky's never-say-die attitude kicked in and he engineered a goal and assist to pull his team within two.

However, the momentum never came back to the Roughnecks' side.

"I thought when we got within two late, the momentum shifted but, once again, give them credit because that's what we did last year when we won the championship," said Kelusky.

"We scored to close it within two but then -- bam! -- they shut the door and scored again to take it away from us.

"We were our biggest enemies tonight.

"We took some stupid penalties and not picking up the loose balls and the basic fundamentals weren't there."